Just a Gist for replacing an image using Squid

doodle.rb

#!/usr/local/bin/ruby
def is_logo(url)
    url =~ /logo1w.png$/
end

while true
    input_url = ARGF.readline.strip().split(' ').first
    new_url = input_url
    if is_logo(input_url)
        new_url = "http://path.to.localserver/images/ashok.png"
    end
    puts new_url
    STDOUT.flush
end